I would say it was probably something ritualistic about the snatch. I would say "initiation to the next level" or "test of loyalty" makes more sense than "rough sex went bad" in the room.

The McCanns were probably tied in with the rest of these creeps and into freaky shit. The McCann's were probably targeted by their own cabal to "offer a sacrifice" - most likely unwittingly, but were told "this is for...." and all they could do was stay quiet or be killed.

Podesta may have groomed her based on biology to be a vessel for reproduction. As well as his sex slave.

I pray for her soul and to be found alive.